论文部分内容阅读
为了充分利用钢材的抗拉性能好的优点 ,劲性混凝土梁中配置的钢梁往往截面绕强轴非几何对称 ,并且对于轧制工字钢 ,其截面形状不规则。如果直接按照这种截面计算劲性混凝土梁正截面承载力 ,工作比较繁琐 ,应用截面转换法可以有效地解决这一问题 ,同时还可以简化判定组合截面中性轴位置的过程。劲性普通混凝土梁正截面承载力计算的基本假定同样适用于劲性火山渣混凝土梁。 4根劲性火山渣混凝土梁的计算结果与实测结果吻合良好 ,截面转换法对于相关计算具有一定参考价值。
In order to take full advantage of the good tensile properties of steel, the steel beams arranged in the rigid concrete beams tend to have non-geometric symmetry around the strong axis and have irregular cross-sectional shapes for rolled I-beams. If we calculate the normal section bearing capacity of the reinforced concrete beam directly according to this section, the work is cumbersome. By using the section transformation method, this problem can be effectively solved. Meanwhile, the process of determining the neutral axis position of the composite section can be simplified. The basic assumptions for calculating the normal section bearing capacity of normal concrete beams are also applicable to the strong volcanic slag concrete beams. The calculation results of the 4 strong volcanic slag concrete beams are in good agreement with the measured ones, and the cross-section transformation method is of certain reference value for the related calculation.